Amazon drones, meet Groupon catapults

Just one week after Amazon announced its high-tech, albeit somewhat vague, plans for drone delivery, the online retail giant is beginning to face warlike competition. Amazon drones, meet Groupon catapults.

The popular deals website Groupon posted a YouTube video Tuesday mocking all those other companies "that drone on" (get it?) about their "risky, experimental, new methods of package delivery." (Watch the video above.)